An instructor computed a least squares regression line to predict final course percentage based on Exam 1. She got the following
1 answer:
Answer:
8.0372
Step-by-step explanation:
given that an instructor computed a least squares regression line to predict final course percentage based on Exam 1.
The regression equation was found out as
When a student makes a grade of 76 one exam 1, and 71.66% in final exam we have
Substitute to get the estimated y as per regression line as
Residual = difference between y hat and y
=
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There are <em><u>25 danishes </u></em>contain cream filling
<h3>Further explanation</h3>The percent is a number that shows a comparison of the number 100 or can be called per hundred (symbol%)
Formula used:
Fractions either proper or mixed (consisting of numerators and denominators) or decimal forms
The percentage can be expressed as a decimal by moving the decimal point two places to the left
One way to convert proper fractions to percent forms is by multiplying the fraction by 100% or By changing the denominator to 100 because percent is the percent. Multiply the numerator and denominator with the same number
35% from Several trays of danishes are filled with cream
There are four (4) trays
18 danishes on each tray
- Total danishes :
- 35% are filled with cream
Round up to<em><u> </u></em><em><u>25 danishes</u></em>
<h3>Learn more</h3>find the percent
Convert 156000 to percentage
The percent
Keywords : cream filling, danishes, trays, breakfast
#LearnWithBrainly
Answer:
Step-by-step explanation:
Given that the mean incubation time for a type of fertilized egg kept at a certain temperature is 25 days.
Let X be the incubation time for a type of fertilized egg kept at a certain temperature is 25 days.
X is N(25, 1)
a) Normal curve is in the attached file
b) the probability that a randomly selected fertilized egg hatches in less than 23 days
=
we convert x into Z score and use std normal distn table to find probability
i.e. we can say only 2.5% proportion will hatch in less than 23 days.
Answer:
The required rate of interest = 14.285%
Step-by-step explanation:
Here, The principal amount = 7,000
The final paid amount = 9,000
Time = 2 years
Let us assume the rate of interest = R
Now, Simple Interest = Amount - Principal
= 9,000 - 7,000 = 2,000
So, the SI on the given principal for 2 years = 2,000
or, R = 14.285%
Hence, the required rate of interest = 14.285%